noun \ˈkrəst\

: the hard outer surface of bread

: the outside part of a pie

: the bread that is used to make a pizza

Full Definition of CRUST

a :  the hardened exterior or surface part of bread
b :  a piece of this or of bread grown dry or hard
:  the pastry cover of a pie
:  a hard or brittle external coat or covering: as
a :  a hard surface layer (as of soil or snow)
b :  the outer part of a planet, moon, or asteroid composed essentially of crystalline rocks
c :  a deposit built up on the interior surface of a wine bottle during long aging
d :  an encrusting deposit (as of the eye) of dried secretions or exudate; also :  scab
:  gall, nerve
crust verb
crust·al \ˈkrəs-təl\ adjective
crust·less \ˈkrəs(t)-ləs\ adjective

Examples of CRUST

  1. Her children prefer to eat their sandwiches with the crust cut off.
  2. a pie with flaky crust
  3. He likes pizza with thin crust.

Origin of CRUST

Middle English, from Latin crusta; akin to Old English hrūse earth, Greek kryos icy cold, krystallos ice, crystal
First Known Use: 14th century

Other Food Terms

Reuben, calamari, chuck, curry, edamame, foie gras, hummus, leaven, nonpareil, peel

Rhymes with CRUST


noun \ˈkrəst\   (Medical Dictionary)

Medical Definition of CRUST

: scab 2
: an encrusting deposit of serum, cellular debris, and bacteria present over or about lesions in some skin diseases (as impetigo or eczema)
crust verb


noun    (Concise Encyclopedia)

Outermost solid part of the Earth, essentially composed of a range of igneous and metamorphic rock types. In continental regions, the crust is made up chiefly of granitic rock, whereas the composition of the ocean floor corresponds mainly to that of basalt and gabbro. On average, the crust extends 22 mi (35 km) downward from the surface to the underlying mantle, from which it is separated by the Mohorovicic discontinuity (the Moho). The crust and top layer of the mantle together form the lithosphere.


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